In my area, my employer offers a managed retirement savings plan with generous matching contributions.
The plan offers very limited control over investment choices (a narrow range of abstract mutual funds, each fund targetting a very specific investor profile), and also offers an ongoing "rebalancing" service - where, on a quarterly or semi-annual basis, the investment portfolio is automatically rebalanced to reflect my guidelines in terms of % investment per mutual fund.
In a situation like this, is it worth checking off the "automatic rebalancing" box?
Does anyone have some math running over historical data, showing what the costs vs. benefits for such automatic rebalancing might look like (for educational purposes - i can adjust the math to match my personal specifics, as needed)?